У вашего броузера проблема в совместимости с HTML5
Sinumerik 840D http://www.helmancnc.com/siemens-sinumerik/ CNC control is a modern and flexible cnc machine control. Sinumerik 840D gives cnc programmer the most control over program and cnc machine. The siemens now have the free download for 60day for the sinutrain which you can install on win7 to have the oppertunity to test your cnc programs and do more.